Ron is an avid reader. He has a large vocabulary because every time he comes across a word he doesn't know, he looks it up in the dictionary. Ron encounters "wanderlust" in a novel, reaches for the dictionary, and finds out this word means "desire to travel." The process of looking up unfamiliar words increases Ron's

After reading an account of a man who runs inside a burning building to rescue two strangers who have succumbed to the smoke, a friend wonders out loud what compels people to risk their lives for the sake of others

Having overheard him, you decide to explain some possible reasons why people engage in such behavior. Be certain to clearly define altruism and explain its roots. Discuss how psychologists explain altruistic behavior toward kin and nonkin. Explain how bystander intervention has been studied in the laboratory, and what has been learned about the effects that the situation has on helping behavior. What will be an ideal response?

Two-year-old Eleanor helped to put all the toys away after playing at a friend's house. This behavior is a good example of the concept called:

a. reciprocity b. deferred imitation c. synchrony d. prosocial behavior